Performance Analysis of Systematic Raptor Codes in Low Power Regime

Dhafer Zaghar, Al-Mustansiriyah University, Hadeel Abdullah, Ikhlas Farhan, University of Technology, University of Technology
2020 International Journal of Intelligent Engineering and Systems  
This paper investigates the application of advanced forward error correction techniques mainly: Raptor code, Low-Density Parity Checks (LDPC) code, and Luby Transform (LT) for wireless communication systems in the low power regime (LPR). Raptor codes are a significant theoretical and practical improvement over LT codes, which were the first actual class of fountain codes. These codes are under consideration for many recent technologies. Different code parameters such as code rate and several
more » ... oding iterations are used to show their effect on the performance of digital systems. In this paper, we propose a systematic Raptor code that enabled transmission of information with different code rates in LPR. Simulation results showed that the suggested design is appropriate for data transmission in a low SNR regime and can provide a reasonable bit error rate (BER) against the additive white Gaussian noise(AWGN) with the optimum selection rate1/4 and 1/9. A more significant improvement in the system's BER performance for the SNR up to -5dB over binary input additive white Gaussian noise (BI-AWGN) channels that showed through simulation results. Also, the BPSK modulation with systematic Raptor code is performed better than QPSK modulation in a limited power region, for the same coding rate and the number of decoding iterations.
doi:10.22266/ijies2020.0831.25 fatcat:fqk6s6vqpraepnrwtu6e4odpty